Cap for inflating-valves.



E. E. POSTON.

CAP FOR INFLATING VALVES.

APPLICATION FILED DEC. 24. 1918.

Patnted Oct. 14, 1919 lmnmbom ZZZ/ 0s fan till rrcE.

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EliEQR'iZ' E. PGSTUH, 9E CAEKPBELL, CKALYLFDE-NIAQ F01? INFLATING-VALVES.

Specification of Letters Patent.

Patented Got. 14, 1919.

Application filed December 2%, 1918. Serial No. 268,153.

T 0 all whom it may, concern: I

Be it known that i, Emory E. POSTON, e citizen of the United States residing at Campbell, in the county of Santa Clara and Thio invention relates to certain improvements in caps for inf icting valves and it or ohgect or the invention to provide 2 dcico this general character h." mg novel end improved moans ere'hy the some may ative position and whereby the same. when in applied position is effectively held against occidental disploccment- The invent-ion. consists in the details of constroctii'm. and in the combination and errangeme'nt of tho sever-oi of my improved for inflating valves whereby ccrtom 17' poi-tent advantages are attained and the (lBVlC'G ij'cndered simpler, expensive and otherwise more convenient and advantageous for use, as will ho hcrometter more fully set forth.

n 1 Q 2 H ihe novel lectures oi my invention Wm hereinafter he definitely claimed.

order that my invention may be the hottczunderstood, 1 wiil now proceed to dcscribe the some with reference to the accompanying drawing, wherein:

Figure l is a view in elevation illustrating a cap constructed in accordance with an emloodimcut of my invention;

Fig. 2 a longitudinal sectional view taken through the device as disclosed in Fig. 1 with the valve stem 1X1 elevation;

Fig. 3 is an elcvational view of the 1mproved cap as herein-disclosed and substum tially the opposite to the elevation shown in Fig. 1, the cap being in position tor removal.

4 is a scctional view taken substuntion enlurgcd as at? to receive the outer end portion of the sleeve or collar 1. The Wall of the enlarged portion 3 at diametrically opposed points is provided with tho bayonet slots 4 at the free edge of the enlarged por-- tion 3 ofthc cap and which is adapted to receive pins 2 so that upon a partial r0- tation of the cop C in one direction the cap is held or locked to the sleeve or collar 1.

. her assurethe retention of the cap A ilied pc-sitioii,- I find it of advantage lidehly engg sged'within the cap C the block or follower dwhich is constantly urged toward the open end of the cap C throughthe-medium of cxpansilole memher 7 herein disclose: a conventional coil spring interposed between the block or follower 6 and the closed end of the cop C. The outer face of the block or follower (3 is provided with a compressible insert 8 prefer obly formed of rubber and which contacts with the outer end of the stem 8 whereby it will he perceived that the pins 2 will GlfGC- tively coact with the cop C for meii'itaining the cap in applied position.

I also find it of advantage to provide a lccliiug member M arcuate in form and having sliding contact with the outer face of the enlarged portion 8 and which member M is hold in applied position through the medium of the headed member 9 carried by the enlarged portion 3 and extending through the longitudinally disposed slot 10 formed in the mcmb'cr M. The slot 10 controls the extent of movomentof the. member M for a purpose which will be hereinafter more fully explained. I

An end portion of the member M is provided with a transversely disposed opon recess 1- notch 11 which registers with the longitudinally disprsed portion a f the hayonct slot 4 when tho member M is at the limit of its movement in one. direction and said mcmzhcr is of such length as to have its opposite end portion free of the second bay- (mot slot 4. The recess or notch 11 is of a. length equal to the portion (1 plus the Width of tho circumferentially disposed portion b of the slot 4 so that when it partial rotationis given to the cop-C the pins 2 will seat Within the circumfermztially disposed portions 7; of the slots 4, l/mchis permitted in View of the lot that the slot 10 is of a length substantially equal to tho length of each of the portions 7/. The member M outwardly of the recess or notch 11 is provided with a spring tongue 12 which seats within the portion a of the adjacent slot 4 so that the member M effectively holds the cap C against retrograde movement after the same has been partially rotated to effect a locking engagement of the cap with the sleeve or collar 1. It is also to be understood that the end portion of the member M remote from "the tongue 12 contacts with the second pin 2 in the circumferential portion 6 of the ad-' jacent slot 4.

From the foregoing I description, it is thought to be obvious that a cap for inflatingvalves Constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated and it will also be obvious that my invention is susceptible of some change and modification without departing from the an open end, said cap being adapted to be disposed over the stem with its open end portion receiving the collar, said open end portion of the cap being provided with angular slots to receive the pins carried by the collar, and a locking member carried by the cap and adapted to contact with a pin of the collar when the cap'is in applied position.

2. 'In combination with a valve stem,'a collar surrounding said stem and provided with outstanding pins, a cap provided with an open end, said cap, being adapted to be disposed over the stem with its open end portion receiving the collar, said open end portion of the cap being provided with angular slots to receive the pins carried by the collar, and a locking member carried by the cap and adapted to contact with the pins of the collar when the cap is in applied position,

'said locking member 'being provided with a tongue adapted to seat within a slot of-ithe cap for holding the member against move ment .in one direction In testimony whereof I hereunto aflix my signature in the presence of two witnesses. EMORY E. POSTON.

Witnesses: I i v JAMES WARREN MCKENZIE, J. B. STRONG, 

